发明名称 |
Variable stroke balancing |
摘要 |
An assembly includes a piston and a transition arm coupled to the piston. The position of the transition arm is adjustable to vary a stroke of the piston. A balance member is adjustable relative to the transition arm to counterbalance the transition arm in varying positions. A control rod is coupled to the transition arm and the balance member. Linear movement of the control rod moves the transition arm in a first direction to change the stroke of the piston and moves the balance member in a second direction substantially opposite the first direction to counterbalance the transition arm. A method of counterbalancing a variable stroke assembly includes moving a transition arm coupled to a piston to vary a stroke of the piston, and moving a balance member in a direction substantially opposite to the direction of movement of the transition arm to counterbalance the transition arm.
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申请公布号 |
US2005118049(A1) |
申请公布日期 |
2005.06.02 |
申请号 |
US20040958648 |
申请日期 |
2004.10.06 |
申请人 |
R. SANDERSON MANAGEMENT, INC., A TEXAS CORPORATION |
发明人 |
SANDERSON ROBERT A.;SANDERSON ALBERT E. |
分类号 |
F04B1/29;(IPC1-7):F04B23/04;F04B41/06 |
主分类号 |
F04B1/29 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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